Transformation from GCS_Everest_Bangladesh (ESRI 37202) to WGS_1984

[PrakashKarki]

How to transform ESRI 37202 to WGS_1984?

[DanPatterson_Retired]

To change coordinate systems, you need to use the Project tool in either ArcMap or ArcGIS Pro

Project—Data Management toolbox | ArcGIS Desktop 

[PrakashKarki]

Thanks for the reply.

Actually, I wanted 3-parameter geocentric translation or 7-parameter

coordinate frame transformation values. This is not mentioned in any

literature I found.

[PrakashKarki]

Actually, I wanted a 3-parameter geocentric translations or 7 parameters transformation parameter values. This transformation is not mentioned in any ESRI, ArcGIS literature.

[DanPatterson_Retired]

GCS Everest Bangladesh: ESRI Projection -- Spatial Reference 

Or the link in your other attempt at GIS Stack

arcgis desktop - Transforming D_Everest_Bangladesh (ESRI 37202) to D_WGS_1984 (ESRI 4326)? - Geograp... 

They weren't very nice though

Then this

http://downloads.esri.com/support/whitepapers/ao_/Map_Projection_Tables.pdf 

But an old thread 

https://community.esri.com/thread/112089 

provided an alternate

Why do you need 3 or 7 parameter transformation parameters?

I must be missing something...

[PrakashKarki]

I used various methods (like, define projection+project as well as different sets of geocetric translations, transformation from Kalianpur etc.). However, I could not project the raster maps and feature polyline in ArcGIS online world imagery correctly. WKT are:

• 1. WKID: 37202 GEOGCS["GCS_Everest_Bangladesh",DATUM["D_Everest_Bangladesh",SPHEROID["Everest_Adjustment_1937",6377276.345,300.8017]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
• 2. WKID: 4042 GEOGCS["GCS_Everest_1830",DATUM["D_Everest_1830",SPHEROID["Everest_1830",6377299.36,300.8017]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

[DanPatterson_Retired]

Using the Project tool (not Define Projection), you should be able to go to GCS WGS84 using the WKID 37202  IF! the data were in that coordinate system in the first placel

.Make sure they are,  that is one of the dangers of the "Define Projection" tool, it only works IF the data are actually in that coordinate system.  Telling something that it IS something doesn't make it so.

Beyond that, you will have to provide specifics of the projection process not "working correctly"

[SimonKettle]

The operator from Kalianpur 1937 datum to WGS84 datum is Kalianpur 1937 to WGS 84 (1) (epsg 1155).

The process to transform from Kalianpur 1937 to WGS84 datum is use the Project tool in ArcGIS Desktop and assign the appropriate parameters in the tool.

As mentioned by Dan Patterson‌ you can look up the available transformations in this ESRI doc.

FYI the following applies:

Kalianpur 1937 to WGS84 (1) is a Geocentric Translation with the following variables dx: 282 dy: 726 dz: 254

[paudelsushil]

Hi @PrakashKarki, I have also faced these problems while overlapping the local unit shapefile of Nepal over the OSM layer.

I have the best solution for this problem. 

First of all, "Create custom geographic Transformation" using ArcMap or ArcGIS Pro where  you have to choose Geocentric Translation Method  under Geographic transformation methods.

Then, use the parameter values as shown in the figure: 

"Project" your ERSRI: 37202 to EPSG:4326 using the above-created Geographic transformation.

You will get a new feature class having EPSG:4326 projection definition.